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147791448812 = 22717421737497
BaseRepresentation
bin1000100110100100001…
…1101000101011101100
3112010110211200111012102
42021221003220223230
54410134102330222
6151521111354232
713451260405340
oct2115103505354
9463424614172
10147791448812
1157750468a37
1224787082978
1310c23b45837
147220329620
153c9ec73d92
hex22690e8aec

147791448812 has 48 divisors (see below), whose sum is σ = 313713949248. Its totient is φ = 59471677440.

The previous prime is 147791448799. The next prime is 147791448823. The reversal of 147791448812 is 218844197741.

It is a happy number.

It is a super-2 number, since 2×1477914488122 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168353 + ... + 569144.

It is an arithmetic number, because the mean of its divisors is an integer number (6535707276).

Almost surely, 2147791448812 is an apocalyptic number.

It is an amenable number.

147791448812 is an abundant number, since it is smaller than the sum of its proper divisors (165922500436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

147791448812 is a wasteful number, since it uses less digits than its factorization.

147791448812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737946 (or 737944 counting only the distinct ones).

The product of its digits is 3612672, while the sum is 56.

The spelling of 147791448812 in words is "one hundred forty-seven billion, seven hundred ninety-one million, four hundred forty-eight thousand, eight hundred twelve".

Divisors: 1 2 4 7 14 17 28 34 68 119 238 421 476 842 1684 2947 5894 7157 11788 14314 28628 50099 100198 200396 737497 1474994 2949988 5162479 10324958 12537449 20649916 25074898 50149796 87762143 175524286 310486237 351048572 620972474 1241944948 2173403659 4346807318 5278266029 8693614636 10556532058 21113064116 36947862203 73895724406 147791448812